Lissomus quisqueya Johnson, 2022

Johnson, Paul J., 2022, The first report of Lissomus Dalman (Coleoptera: Elateridae: Lissominae) from the Greater Antilles, with two new species from the Dominican Republic, Insecta Mundi 2022 (911), pp. 1-10 : 4

Lissomus quisqueya Johnson , new species

( Fig. 1, 3, 5, 7 , 8 )

Description. Body ( Fig. 1, 3 ) length 8.4–9.9 mm, width 3.9–4.6 mm; elongate-oval to laterally subparallel, moderately convex dorsally. Integument shining, castaneous to brunneo-piceous, with rufous to piceous highlights on margins and carinae. Pubescence aureus, fine and hairlike, appressed, directed posteriorly, except directed anteriorly on head.

Head evenly convex; frons moderately-densely punctured, punctures separated by ca. 0.2–0.5 times their own diameter, irregular and sparse on frons, denser along eye margins and center of discal area. Antenna with antennomeres infuscate to variably flavous on 3-10 serrations, reaching short of apex of hind angle of pronotum by length of antennomere 11; antennomere 2–11 length ratio 1.0:1.2:1.4:1.4:1.4:1.4:1.4:1.7:1.7:1.7:2.4.

Pronotum with median length 0.51–0.52 times width at basal margin across posterior angles; punctures simple, deep, dense, separated by ≤0.5 times own diameter, becoming smaller posterolaterally; carina of lateral margin fine, polished; hind angles slightly divergent, incurved apically, dorsal carina obtuse, evanescent anteriorly, reaching 0.38 times distance to anterior margin. Prosternum shallowly convex, moderately-sparsely, coarsely punctured.

Scutellar shield length 1.0–1.1 times width, obovate, moderately convex, obtuse posteriorly.

Elytral bases each with four short longitudinal impressions, striae 1–8 fine, narrow, shallow, indistinct; punctation evenly distributed, dense, separated by ≤0.5 times own diameter; striae subtended by transversely oval trabeculae visible in lighter colored specimens; stria 9 sulcus deep basally and merging with humeral groove, becoming progressively shallower apically, with costal side of sulcus with obsolescent to obsolete carina from metafemoral notch to end; intervals flat to shallowly convex, setal punctures shallow; epipleuron coarsely, punctured, posthumeral lateral margin ecarinate; ventrally with narrow ventrite locking flange in apical third. Metasternum disc punctures sparse, separation 1.0–2.0 times own diameter, denser anterolaterally; with a fine arcuate carina extending toward anterolateral angle. Metatarsomere 1–5 length ratio 1.0:0.4:0.3:0.3:1.1.

Abdomen with ventrites coarsely, moderately-densely punctured, punctures separated by 1.0-1.2 times own diameter; first ventrite laterally with elytral locking flange, becoming cariniform posteriorly, carina extended along ventrites 2–5. Aedeagus ( Fig. 5 ) with median lobe broadly obtuse at apex, 0.71 of total length; lateral lobe with lateral margin slightly undulate, apex hooked laterally, 0.75 of total length; basal piece 0.41 of total length.

Females not distinguishable from males without examination of genitalia.

Type material. Holotype, male: La Vega, Cordillera Central, Loma Casabito, 15.8 km NW Bonao, 19-02-12W, 70-31-08W, 1455 m, 28 May 2003 / J. Rawlins, C. Young, R. Davidson, C. Munez, P. Acevedo; evergreen cloud forest, east slope, UV light, Sample 21212 / CMNH-356,424 (1, CMNH).

Paratypes: Dajabon Province: 13 km S Loma de Cabrera , ca. 400 m, 20-22.v.1973, Don & Mignon Davis (1, NMNH) ; La Vega Province: PN. A. Bermudez, Cienaga , 19.vii–2.viii.[19]95 1000 m, trop. evgrn.fr., FIT, S.+ J. Peck, 95-32 (1, CMN) ; Par. Nac. Arm. Bermúdez , 1100 m, 19°04.07′N, 70°51.68′W, La Cienega, 29.vii.1999, light, M.A. Ivie & K.A. Guerrero (1, WIBF) ; PN Armando Bermudez , km 1–3 along trail W of La Cienaga, 900–1100 m, 19°01.753′N, 70°54.654′W, 6.vi.2005, G. Nearns (2, FSCA; 2, NMNH) .

Additional material examined. Thirteen (13) photographic images attributed to this species were examined, see example Fig. 7 . Two specimens were collected at Las Castilla, Arroyo Frío, La Vega Prov., 1170 m elevation, 5.vii.2018, ca. 10:00 pm, and were imaged and submitted for determination by Maribel Armenteros de Chotin, La Vega.

Etymology. The specific epithet “ quisqueya ” is treated as a noun in apposition and is derived from Quisqueya, a traditional Taino name for the island, with a meaning translated to English as “Mother of all Lands.”

Distribution. Island of Hispaniola, Dominican Republic, Dajadon and La Vega provinces.

Notes. Known L. quisqueya localities are among premontane cloud forests. Three specimens were collected at lights, and two were found active at night on the abaxial surfaces of a leaf in a garden near primary forest ( Fig. 5 )

(M. Armenteros, pers. comm.).

Figures

Figure 8. Approximate locations of Lissomus species in Dominican Republic; dots for L. quisqueya and squares for L. woodruffi.

Figures 1–7. Adult habitus and aedeagus each of Lissomus quisqueya and L. woodruffi. 1) Lissomus quisqueya, adult, dorsal aspect. 2) Lissomus woodruffi, adult, dorsal aspect. 3) Lissomus quisqueya, adult, lateral aspect. 4) Lissomus woodruffi, adult, lateral aspect. 5) Lissomus quisqueya, aedeagus, dorsal aspect. 6) Lissomus woodruffi, aedeagus, dorsal aspect. 7) Lissomus quisqueya, live adult on leaf edge, oblique aspect. Photo by M. Armentero de Chotin; used with permission.